Re: [Qemu-devel] [PATCH 01/13] hbitmap: serialization

[Fam Zheng <famz@redhat.com>]

On Wed, 11/11 18:16, Vladimir Sementsov-Ogievskiy wrote:
> +void hbitmap_deserialize_finish(HBitmap *bitmap)
> +{
> +    int64_t i, size, prev_size;
> +    int lev;
> +
> +    /* restore levels starting from penultimate to zero level, assuming
> +     * that the last level is ok */
> +    size = MAX((bitmap->size + BITS_PER_LONG - 1) >> BITS_PER_LEVEL, 1);
> +    for (lev = HBITMAP_LEVELS - 1; lev-- > 0; ) {
> +        prev_size = size;
> +        size = MAX((size + BITS_PER_LONG - 1) >> BITS_PER_LEVEL, 1);
> +        memset(bitmap->levels[lev], 0, size * sizeof(unsigned long));
> +
> +        for (i = 0; i < prev_size; ++i) {
> +            if (bitmap->levels[lev + 1][i]) {
> +                bitmap->levels[lev][i >> BITS_PER_LEVEL] |=
> +                    1 << (i & (BITS_PER_LONG - 1));

This should be 1UL.

Fam

> +            }
> +        }
> +    }
> +
> +    bitmap->levels[0][0] |= 1UL << (BITS_PER_LONG - 1);
> +}
> +
>  void hbitmap_free(HBitmap *hb)
>  {
>      unsigned i;
> -- 
> 2.1.4
> 
>